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Now showing items 121-130 of 161
From individuals to environment: the relative roles of morphology, flight, density, synchrony, habitat structure, and weather on extra-pair paternity
(2016-08)
Reproductive success is driven in large part by the mating system of a species, which ultimately determines patterns of gene transmission across generations. In species with socially monogamous mating systems, an important ...
Nutrient availability and the structure and function of brown food webs
(2013-11-25)
Understanding individual nutritional requirements can generate good predictions for how communities should be structured and how ecosystems function over gradients of nutrient availability. Aboveground consumers can shape ...
Connecting diversity indices, ecosystem processes, and language use to better understand and manage freshwater systems
(2023-05-12)
Rivers and streams are among the world’s most threatened ecosystems despite the importance of freshwater to human society. Rivers have been dammed, dried, and moved for human needs and consumption. They have experienced a ...
USING RADAR TO REVEAL LARGE-SCALE IN-FLIGHT BEHAVIORS OF MIGRATORY BIRDS
(2017-05-12)
The shortest possible migratory route for birds is not always the best route to travel. Substantial research effort has established that birds in captivity are capable of orienting toward the direction of an intended goal, ...
MOLECULAR EVOLUTION OF OXIDATIVE PHOSPHORYLATION GENES
(2015-08)
Physiological processes may serve as mechanistic links between organismal genotypes and phenotypes. Accordingly, adaptations in genes involved in energy metabolism pathways may facilitate the evolution of organismal ...
Phylogeography and Diversification of the Ouachita Mountain Endemic Salamanders of the
(2008)
Climatic changes associated with Pleistocene glacial cycles profoundly affected species distributions, patterns of inter-population gene flow, and demography. In species restricted to montane habitats, ranges may expand ...
Increase and Maintenance of Community Diversity by Positive Frequency-dependent Predation in the Tierra System
(2012)
Ecological communities often contain a wide diversity of species but how different species may arise and stably coexist, especially in homogenous spatial environments, is poorly understood. In this dissertation, I use the ...
Life-history evolution in livebearing fishes (Teleostei: Poeciliidae)
(2010)
Life histories lie at the heart of biology, because the tradeoffs each organism faces concerning the distribution of limited resources into either reproduction or maintenance and growth determine that organism's fitness. ...